Optics: measuring and testing – For optical fiber or waveguide inspection
Patent
1995-06-26
1996-06-25
McGraw, Vincent P.
Optics: measuring and testing
For optical fiber or waveguide inspection
G01N 2184
Patent
active
055305466
ABSTRACT:
A station for testing fiber optic jumper cables includes four indexing plugboard stations. A single cable to be tested is typically attached to extend between two of the plugboard stations. Each plugboard station includes three columns of plug positions, corresponding to three styles of connecters which may be used at the ends of the cable to be tested. An upper row, and a central row, of plug positions correspond to the contact types (PC or APC) which may be used. An indexing mechanism is provided to align one of the plug positions in the central row with a reference cable extending from the plugboard station. Reference jumpers extend from the upper row, being docked in a lower row of plug positions if the cable to be tested is connected to the central row, or being plugged into the central row if the cable to be tested is connected to the upper row. The reference cable extending from each of the plugboard stations is brought into and out of contact with one of the central-row plugboard positions, facilitating a sequence of tests. The reference cables from two of these plugboard stations are connected through an optical switch to an optical time domain reflectometer (OTDR), while the other two reference cables are simply connected to connectors at their far ends. A computer controls indexing the plugboard stations and brings the reference cables into engagement according to a preferred sequence.
REFERENCES:
patent: 4309105 (1982-06-01), Lebduska
patent: 5093568 (1992-03-01), Maycock
patent: 5179420 (1993-01-01), So et al.
patent: 5196899 (1993-03-01), Serwatka
Barringer Wayne A.
DeCusatis, Jr. Casimer M.
Fleck Christopher M.
Davidge Ronald V.
International Business Machines - Corporation
McGraw Vincent P.
Tomlin Richard A.
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